Establishing a steam-trap survey programme
A steam-trap survey programme is a recurring, documented inspection of every trap in a plant to find those that have failed open (venting live steam) or closed (backing up condensate). Because traps fail silently and continuously, a routine survey is the only reliable way to keep steam losses from creeping back up.
What it is
Steam traps automatically discharge condensate while holding back steam, and they wear out. A survey programme tags and tests every trap on a schedule — typically with ultrasound and temperature — records its condition, and drives repair work orders. It turns trap maintenance from reactive to systematic.
Why it is done
A single trap failed open can vent steam around the clock; across hundreds of traps the losses compound invisibly because nothing alarms. Surveys catch failures early, prioritise repairs by steam loss, and stop the slow drift back to wasteful operation that follows any one-off fix.
How it is done
Every trap is located, tagged and added to a register with its type, size and service. Each is tested — ultrasound to hear flow, temperature to confirm operation — and classified as good, failed open, failed closed or leaking. Failures are turned into prioritised work orders, repairs verified on re-test, and the whole survey repeated on a set cycle.
- Tag & register traps
- Ultrasound test
- Temperature check
- Classify condition
- Prioritised repairs
- Re-survey on cycle
What to watch for
A one-off survey with no repeat cycle simply lets failures accumulate again. Repairing without verifying on re-test, and surveying without prioritising by actual steam loss, both waste the effort.
Related practices
Changing over a boiler feedwater treatment programme
Adopting condensate recovery
Adopting reverse-osmosis water pre-treatment
Related topics
Steam Trap Management: Cutting Losses from Failed Traps · Steam Trap · Boiler Efficiency
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